Combined derrick and concrete-mixer.



No. 811,243. PATENTED JAN. 30, 1906- J. LQPARSONS, J3. COMBINED DERRICK AND CONCRETE MIXER.

AYPLIGATION FILED PB. 12, 1905.

UNITED STATES PATENT- Oar-101;.

JAMES L PARSONS, Ja, OF WASHINGTON, nrs'rarcr OF COLUMBIA. "C'OMBINED DERRICK AND CONCRETE-MIXER.

No. 151L243.

I Specification of Letters Patent.-

- Patented. Jan. 30,1906.-

Applioation filed April 12, 1905- Berlal-Ho. 255,216.

To all whom/.- it may concern-.-

Beit known that I, JAMES L. PARSONS, Jr. a citizen of the United States, residing at WVashington, District of Columbia, have inarranged to receive the sand, cement, water,

and other material comprising the concrete I and to thoroughly mix said material while it is being conveyed to the point at which it is to be used, thereby rendering it. possible'to take the raw material and depo it; it as thorgllrghl-y mixed concrete ith but one hanmg. i

- A further object of the invention is to so arrange a rotative concrete-mixin receptacle in combination with a derrick t at said re-' ceptacle will be prevented from. twisting in a vertica horizontal plane as the boom of the derrick is swung from oint to point.

Further o jects and advantages of the invention will be set forth-in the detailed description which now follows.

In the accompanying drawings, Figure 1 is a perspective view ot' an ordinary j ib-derrick having my improved concrete-mixer applied thereto, and Big. 2 is a longitudinal vertical section of said receptacle.

Referring to the drawings, the numeral 5 represents a jib-derrick of ordinary construction and com rising the rotative mast 6, bullvsheel 7, to w ch motion is imparted by a ca-.

ble 8, a jib 9, which is pivoted at to-a bracket 11, carried'by mast 6, a bearing-cap 12, a bearing-pin 13, carried by said cap, a bearing-plate 14, in which in 13 has its hearing, gu -eables 15 for hol ing the mast in a osition, and sheaves 16 and 17, over which a ib-line 18 passes.

As has been hereinbefoie stated, the foregoing elements comprise a derrick of ordinary construction; but while m improved concrete-mixer is well adapte to work in conjunction With such a derrick it is to be under stood that any other form of derrick may be substituted therefor, if desired.

In carrying out the invention I provide a, yoke 19, preferably constructed as shown,

though an other form of yoke ma be substituted t 1ereior, if desired. Yo e 19 is swung, as at 20, to the outer end of jib 9 and carries sheaves 21 and 22, over which leadlines 23 'and' 24 pass. The ends 23 24 of said load-lines are secured to the blocks of sheaves 21 and 22, passing thence around grooved wheels 25 and 26, inte al with a concrete-mixing receptacle 27 w 'ch will be hereinafter described. Said load-lines then 25. A closure 30 hinged, as at 31, to shell 28 and tplrovided with a latch 32, aiiords means for ling and emptying rece tacle 27-. It

will be seen by r erring to load-lines wheels 25. III-other words, they are given at least one full turn thereon or more than one full turn, if-that be found necessa DiagOnally-disposed blades 33 assist m the thorough mixing of the material when the receptacle 27 is rotated, as .will presently be described. Y

,The operation of the device is as follows: The material forming the constituent parts of concrete is placed in receptacle 27. It is receptacle must rest nearly or gluite upon the ground. Power is then ap pli rum of the hoistingengine, (not shown) upon which both of t e load-lines are wound, to wind said lines upon said drum, and thereby simultaneously elevate and rotate the receptacle 27. ThlS rotation of receptacle 27 causes the material contained therein to be thoroughlymixed. After receptacle 27 has swung to the point where it is 'esired to deposit the concrete by' rotating the mast of the derrick in the usual manner. The lowering of receptacle 27 preparatory to dumping the concrete into the form prepared therefor causes said receptacle to rotate in the opposite direction, thereby further mixing its contents. By (providing a oke such as is herein shown and lines passing over sheaves carried at the outer ends of said yoke receptacle 27 will be prevented from twisting in a horizontal plane as it is Swun from point to point by derrick 5.

From t e foregoing description it will be seen that means are herein provided for tak ig. 1 that-the pass entirely around grooved.

to the usual pass over sheaves 21 and 22 rearwardly to a 7 which are cast inte 'al with grooved wheels apparent that m order to accomplish this said i been elevated to a-sufficient height it may be escribed an. byhaving two load- 20 to the outer end of said-boom, sheaves carthe rawmaterial forming the constituent parts of'concrete and depositing said material in the form of thorou hly mixed concrete" at any point Within t e radius of action. of the derrick. By roviding the device herein shown and descr' ed. I am enabled to accom lish the foregoing object while handlin t ematerial but once. 7

. hile the elements herein shown and de- 10 scribed are well adapted to serve the purposes for which they are intended, it is to be understood that my invention is not limited to the recise construction shown and changes may be made in the details thereof without deparr 5 ture from the invention.

Having thus described my invention, what. I claim isa 1. The combination-with a derrick ha a movable boom; ofja. yoke secured directly r1ed upon the ends of sai yoke and a loadto be simultaneca receptacle adap ouslg eievated and rotated by'the load-lines 2. The combination with a derrick having a movable boom, of a yoke secured directl .to said boom adjacent the outer end thereo sheaves carried by the outer ends of said yoke, load-lines passing over said sheaves and 30 a receptacle having grooved wheels around which said load-lines pass.

Y 3. The combination with a derrick comprising a mast capable of movement upon its axis and'a boom carried by said mast and 3 5 pivoted for vertical movement thereto, of a yoke secured directl to said boom adjacent the outer end thereo ,ioad-lines, sheaves carried by the outer ends of the yoke over-which said load-lines ass anda receptacle with 40 which'said' load ines'engage, in such mariner as to be simultaneously rotated and mo ed in a vertical plane by saidjload lines'f In testimony whereof I afiix my in presenceof 'twowitnes'seal,

.JALIESIJP A RSONS, i11 Witnesses: f v I y.

FRANK G. CAMPBELL.

z 5 the sheaves carried bytljie yoke.

HARRY L. WmrE.- 

